WO2002060037A1 - Coil with cooling means - Google Patents
Coil with cooling means Download PDFInfo
- Publication number
- WO2002060037A1 WO2002060037A1 PCT/IB2001/002680 IB0102680W WO02060037A1 WO 2002060037 A1 WO2002060037 A1 WO 2002060037A1 IB 0102680 W IB0102680 W IB 0102680W WO 02060037 A1 WO02060037 A1 WO 02060037A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coil
- turns
- conducting
- foil
- magnets
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/18—Machines moving with multiple degrees of freedom
Definitions
- the invention relates to a coil provided with current-conducting turns and with cooling means.
- the invention also relates to an actuator in which such a coil is used.
- Such cooled coils are generally known.
- the heat removal from the turns may take place, for example, by means of a cooling channel through which a cooling liquid is pumped, see e.g. EP 0414927 and DE 331707, or by means of radiation plates as known from US 5,164,262.
- the cooling effect of these coils is limited and certainly not ideal. The problem of the cooling is even greater if coils are used in high-power equipment. The removal of heat then becomes highly essential.
- the coil according to the invention is for this purpose characterized in that the coil is provided with a number of heat-conducting foil turns whose edge portions are cooled by the cooling means. Providing the coil with heat-conducting foil turns and cooling the edge portions thereof leads to a good heat transport to the cooled edge portions.
- the edge portions could be cooled, for example, by means of an air flow. It is more efficient, however, to connect the edge portions thermally to the cooling means, i.e. to provide a physical connection through which a sufficient heat flow can be conducted.
- the cooling means used may be a cooling channel through which a cooling liquid is pumped. The edge portions of the foil turns must make good contact with a wall of the cooling channel.
- the heat-conducting foil turns are at the same time the current-conducting turns.
- the advantage of foil coils over wire coils is the greater filling factor of the current conductors, usually of copper, whereby a much higher efficiency is achieved.
- Many foil turns are present in each foil coil, all contributing to a very good heat dissipation. It is nevertheless also possible to construct the current-conducting turns as electrically insulated wire turns, between which the heat-conducting turns extend.
- the I-N characteristic can be better optimized with a wire- wound coil than with a foil- wound coil.
- the cooled coils in accordance with the invention described above may be used in an actuator which is characterized by two systems of permanent N- and Z- magnets situated one above the other, between which the coil according to the invention is accommodated, the direction of a magnetic field generated by the magnets being perpendicular to the plane in which the foil turns are oriented, while the coil is movable with respect to the magnet systems in a direction parallel to the plane in which the foil turns are oriented.
- High powers can be used in such an actuator, also denoted X-Y actuator.
- the coil may be very flat, and the air gaps between the coil and the magnets can be small, so that a highly homogeneous magnetic field can be used.
- the coils according to the invention may be used in an actuator which is characterized by one system of alternate permanent N- and Z-magnets above which a coil according to the invention is present, the direction of a magnetic field generated by the magnets being parallel to the plane in which the foil turns are oriented, while the coil is movable with respect to the system of magnets in a direction perpendicular to the plane in which the foil turns are oriented.
- the actuators mentioned above may be used as a displacement device in a component placement machine for placing components on a printed circuit board, or in a lithographic device (wafer stepper) for manufacturing integrated circuits on a semiconductor substrate.
- Fig. 1 shows a coil with a cooling channel in perspective view
- Fig. 2 is a cross-sectional view of the coil of Fig. 1 taken on the line II-II,
- Fig. 3 is a perspective view of an alternative embodiment of the coil of Fig. 1, Fig. 4 shows a detail of the coil of Fig. 3,
- Fig. 5 shows an actuator in which the first embodiment of the coil is used
- Fig. 6 shows an actuator in which the second embodiment of the coil is used.
- Fig. 1 shows a flat coil 1 with current-conducting foil turns 2, a cooling channel 3 being provided around the coil.
- the arrow I indicates a current direction.
- a cooling liquid is pumped through the cooling channel, as indicated with an arrow F.
- the coil is formed by a number of (copper) foil turns 4 which are separated from one another by insulation layers 5.
- the ends 7 of the edge portions 6 of the turns are in contact with the wall 8 of the cooling channel 3.
- the ends of the edges of the turns must not make contact with one another.
- a heat-conducting epoxy layer may be provided on said ends, i.e. over the entire lateral side of the coil.
- the heat generated in the coil flows through the (copper) foils 4 to the edge portions 6, as indicated by an arrow , because this is the coldest spot.
- the current-conducting foil turns 2 in this example therefore, at the same time serve as the heat-conducting turns 4.
- Figs. 3 and 4 show a coil with electrically insulated current wire turns 9.
- a number of wire windings lie above one another in layers, said layers being separated from one another by heat-conducting (copper) foil turns 4.
- the ends 7 of the edge portions 6 of these foil turns are thermally connected to a wall 8 of the cooling channel 3.
- the foil turns now are allowed to make contact with one another.
- the heat arising in the (copper) wire turns 9 is transported from the wire through the insulating layer to the foil turns 4, and then to the edge portions 6 thereof which adjoin the cooling channel 3, where cooling takes place.
- said turns are interrupted as shown in Fig. 3 with the double line 10.
- Fig. 5 shows an example of a Lorentz X-Y actuator 11.
- the actuator is built up from two systems 12, 13 of N-Z magnets situated one above the other, a Z-magnet lying opposite an N-magnet each time.
- a cooled coil 1, 3 as described above is present between the systems.
- the coil is present in a homogeneous magnetic field.
- the direction of the magnetic field through the coil is indicated with arrows M.
- Closing plates for the magnetic circuit are referenced 14 and 15.
- the foil turns 4 of the coil extend in a plane 16 perpendicular to the magnetic field M. The coil moves parallel to the plane 16 in which the foil turns 4 are oriented.
- the actuator can be incorporated in equipment in a simple manner thanks to its flat, i.e. small dimensions. In practice, it may be either the coil or the magnets which form the moving part. If the magnets move, this has the advantage that the electrical connections and the tubing for the cooling need not move. This renders the actuator particularly suitable for use in a wafer stepper in which operations take place in vacuum.
- Fig. 6 shows a second embodiment of an actuator 18 with a cooled coil 1, 3 according to the invention.
- the actuator now consists of one system 19 of alternating N- and Z-magnets, with the coil arranged immediately above the magnets, a three-phase coil in this case.
- the direction of the magnetic field M is parallel to the plane 20 in which the foil turns 4 are oriented.
- a closing plate for the magnetic circuit is referenced 21.
- the X- or Y- movement of the coil is perpendicular to the plane 20 of the turns.
- the cooling channel 3 now lies at one side only of the coil 1, i.e. at that side where the edge portions 6 of the turns 4 face away from the system 19 of magnets.
- the actuator is to be capable of performing an X- and Y-movement, the magnets must be arranged in a chessboard pattern, and at least a second coil is to be provided which is oriented perpendicularly to the first coil.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002560258A JP4257118B2 (en) | 2001-01-25 | 2001-12-19 | Coil with cooling means |
EP01273472A EP1356570A1 (en) | 2001-01-25 | 2001-12-19 | Coil with cooling means |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01200299.4 | 2001-01-25 | ||
EP01200299 | 2001-01-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002060037A1 true WO2002060037A1 (en) | 2002-08-01 |
Family
ID=8179809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2001/002680 WO2002060037A1 (en) | 2001-01-25 | 2001-12-19 | Coil with cooling means |
Country Status (5)
Country | Link |
---|---|
US (1) | US6545377B2 (en) |
EP (1) | EP1356570A1 (en) |
JP (1) | JP4257118B2 (en) |
KR (1) | KR20030007477A (en) |
WO (1) | WO2002060037A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1372035A2 (en) * | 2002-06-12 | 2003-12-17 | ASML Netherlands B.V. | Lithographic projection apparatus and device manufacturing method |
EP1469578A2 (en) * | 2003-04-18 | 2004-10-20 | ASML Holding N.V. | Actuator coil cooling system |
DE102008052627A1 (en) * | 2008-10-22 | 2010-04-29 | Itk Dr. Kassen Gmbh | Conductor assembly, method for their preparation and use of a conductor arrangement |
CN103904804A (en) * | 2012-12-28 | 2014-07-02 | 上海微电子装备有限公司 | Coil unit for machine winding and planar motor using the coil unit |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4227452B2 (en) * | 2002-12-27 | 2009-02-18 | キヤノン株式会社 | Positioning device and exposure apparatus using the positioning device |
EP1457825A1 (en) * | 2003-03-11 | 2004-09-15 | ASML Netherlands B.V. | Lithographic apparatus, device manufacturing method and device manufactured thereby |
EP1457827A1 (en) * | 2003-03-11 | 2004-09-15 | ASML Netherlands B.V. | Lithographic apparatus, device manufacturing method and device manufactured thereby |
EP1457833B1 (en) * | 2003-03-11 | 2012-05-30 | ASML Netherlands B.V. | Lithographic apparatus, device manufacturing method, and device manufactured thereby |
EP1465014B1 (en) * | 2003-03-11 | 2008-08-06 | ASML Netherlands B.V. | Lithographic apparatus, device manufacturing method and device manufacturated thereby |
US6992410B2 (en) * | 2003-04-29 | 2006-01-31 | Asm Technology Singapore Pte Ltd | Cooling system for motors |
NL2005236A (en) * | 2009-09-16 | 2011-03-17 | Asml Netherlands Bv | Actuator, lithographic apparatus, and actuator constructing method. |
KR20150128454A (en) * | 2014-05-09 | 2015-11-18 | 주식회사 만도 | Cooling structure for a motor |
DE102017207659B4 (en) * | 2017-05-08 | 2019-11-14 | Audi Ag | Electric machine and method for manufacturing an electric machine |
DE102018115654A1 (en) * | 2018-06-28 | 2020-01-02 | Schaeffler Technologies AG & Co. KG | Actively cooled coil |
DE102019103541A1 (en) * | 2018-07-06 | 2020-01-09 | Hanon Systems | Cooling module with axial fan for vehicles, especially for electric vehicles |
CN110061606B (en) * | 2019-05-28 | 2020-06-26 | 北京理工大学 | High-power-density magnetic compression power generation mechanism and power generator comprising same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996028276A1 (en) * | 1995-03-14 | 1996-09-19 | Fanuc Ltd | Biaxial table apparatus driven by linear motor |
WO2000001053A1 (en) * | 1998-06-30 | 2000-01-06 | Emotron Ab | Cooling system for an electrical machine |
US6084319A (en) * | 1996-10-16 | 2000-07-04 | Canon Kabushiki Kaisha | Linear motor, and stage device and exposure apparatus provided with the same |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE331707C (en) | 1921-01-15 | Aeg | Cooling device for coils of AC machines | |
JPS5537834A (en) * | 1978-09-05 | 1980-03-17 | Mitsubishi Electric Corp | Rotor for superconductive rotary machine |
EP0414927A1 (en) | 1989-08-28 | 1991-03-06 | Siemens Aktiengesellschaft | Liquid-cooled stator winding for an electric driving machine |
TW200616B (en) | 1990-06-14 | 1993-02-21 | Hujikura Densen Kk | |
US5896076A (en) * | 1997-12-29 | 1999-04-20 | Motran Ind Inc | Force actuator with dual magnetic operation |
-
2001
- 2001-12-19 KR KR1020027012628A patent/KR20030007477A/en not_active Application Discontinuation
- 2001-12-19 EP EP01273472A patent/EP1356570A1/en not_active Withdrawn
- 2001-12-19 WO PCT/IB2001/002680 patent/WO2002060037A1/en active Application Filing
- 2001-12-19 JP JP2002560258A patent/JP4257118B2/en not_active Expired - Fee Related
-
2002
- 2002-01-17 US US10/056,370 patent/US6545377B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996028276A1 (en) * | 1995-03-14 | 1996-09-19 | Fanuc Ltd | Biaxial table apparatus driven by linear motor |
US6084319A (en) * | 1996-10-16 | 2000-07-04 | Canon Kabushiki Kaisha | Linear motor, and stage device and exposure apparatus provided with the same |
WO2000001053A1 (en) * | 1998-06-30 | 2000-01-06 | Emotron Ab | Cooling system for an electrical machine |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1372035A2 (en) * | 2002-06-12 | 2003-12-17 | ASML Netherlands B.V. | Lithographic projection apparatus and device manufacturing method |
US6891600B2 (en) | 2002-06-12 | 2005-05-10 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
SG121780A1 (en) * | 2002-06-12 | 2006-05-26 | Asml Netherlands Bv | Lithographic apparatus and device manufacturing method |
EP1372035A3 (en) * | 2002-06-12 | 2006-08-02 | ASML Netherlands B.V. | Lithographic projection apparatus and device manufacturing method |
EP1469578A2 (en) * | 2003-04-18 | 2004-10-20 | ASML Holding N.V. | Actuator coil cooling system |
EP1469578A3 (en) * | 2003-04-18 | 2006-06-07 | ASML Holding N.V. | Actuator coil cooling system |
US7176593B2 (en) | 2003-04-18 | 2007-02-13 | Asml Holding N.V. | Actuator coil cooling system |
DE102008052627A1 (en) * | 2008-10-22 | 2010-04-29 | Itk Dr. Kassen Gmbh | Conductor assembly, method for their preparation and use of a conductor arrangement |
CN103904804A (en) * | 2012-12-28 | 2014-07-02 | 上海微电子装备有限公司 | Coil unit for machine winding and planar motor using the coil unit |
Also Published As
Publication number | Publication date |
---|---|
KR20030007477A (en) | 2003-01-23 |
JP2004518395A (en) | 2004-06-17 |
US20020096946A1 (en) | 2002-07-25 |
JP4257118B2 (en) | 2009-04-22 |
EP1356570A1 (en) | 2003-10-29 |
US6545377B2 (en) | 2003-04-08 |
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